This topic

BT Broadband speeds reducing over time

Richard909 — Sun, 20 Mar 2022 10:45:12 GMT

In Dec 2018, we switched to BT FTTC Superfast Fibre we were told to expect the following speeds:

    ... estimate your download speed will be between 47Mbps and 55Mbps,
    and your upload speed will be between 9.8Mbps and 10Mbps.

    The minimum guaranteed speed you can expect from your broadband will be 42Mbps.

In Jun 2020, we renewed with BT, now called Fibre 1 and our new speeds were:

    ... estimate your download speed will be between 36Mbps and 50Mbps,
    and your upload speed will be between 7Mbps and 9Mbps.

    The minimum guaranteed speed you can expect from your broadband will be 30Mbps.

In Jun 2022, if we renew again, still with Fibre 1, our speeds will be:

    ... estimated download speed will be between 25Mbps and 27Mbps,
    and your upload speed will be between 8Mbps and 9Mbps.

    The minimum guaranteed speed you can expect from your broadband will be 22Mbps.

I could upgrade to Fibre 2 and get exactly the same estimated speeds as Fibre 1!

Is it just us or are BT's broadband download speeds falling everywhere?
(and how long will it be before I need to get the old 9.6K modem out of the loft)?

PS. Our current measured download speed is 27Mbps. ☹️

Re: BT Broadband speeds reducing over time

Keith_Beddoe — Sun, 20 Mar 2022 11:17:16 GMT

@Richard909

That is to be expected. One major disadvantage of FTTC, is that as more people get connected to the cabinet, the amount of crosstalk between adjacent cable pairs increases, which results in a decrease of connection speed due to the reduction of available bandwidth.

Re: BT Broadband speeds reducing over time

imjolly — Sun, 20 Mar 2022 11:12:42 GMT

what connection speeds do you currently get as BT figures are just estimates

if you cannot get fibre 1 max speeds then moving to fibre 2 will not help get faster speeds. you are obvioysly getting as fast as your line can handle

Re: BT Broadband speeds reducing over time

Richard909 — Thu, 24 Mar 2022 13:41:46 GMT

For the last two months we have had a downstream sync speed high of nearly of about 40mbs for a couple of days, a low of about 17mbps for about two weeks and some where between those two speeds for the rest of the time.

I guess the download speeds are a little less than the sync speeds.

Currently the sync speed is 29.999mbps, below our minimum stay fast guarantee of 30mbps.

Re: BT Broadband speeds reducing over time

Richard909 — Thu, 24 Mar 2022 13:44:00 GMT

According to the BT Broadband Checker we should be getting around 40mbps.

Re: BT Broadband speeds reducing over time

imjolly — Thu, 24 Mar 2022 13:54:26 GMT

please can you post the stats from your router (if hub enter 192.168.1.254 in your browser) and if HH5 then go to troubleshooting then helpdesk and if HH6/SH2 then advanced settings then technical log information .

Have you tried the quiet line test? - dial 17070 option 2 - should hear nothing - best done with a corded phone. if cordless phone you may hear a 'dull hum' which is normal

are you having problems with your connection dropping - lights on hub changing colour? are you doing manual resets to try and improve your speed

Re: BT Broadband speeds reducing over time

Richard909 — Thu, 24 Mar 2022 14:22:16 GMT

Re: BT Broadband speeds reducing over time

Richard909 — Thu, 24 Mar 2022 14:25:04 GMT

No noise on the quiet line test.

We do get a lot of re-connects, more than 70 from the 16 Feb to now.

Used to do the odd reset but mostly leave it alone.

Re: BT Broadband speeds reducing over time

imjolly — Thu, 24 Mar 2022 14:26:06 GMT

sorry that is hub status you need to go to hub manager then advanced settings then technical log information. should see your connection information - not the logs

Re: BT Broadband speeds reducing over time

Richard909 — Thu, 24 Mar 2022 14:33:54 GMT

Is this what you mean?
There's a lot of stuff in the log, here are (I think) the recent re-connects from the hub log:

20-Mar    03:29:10    DSL Link Up    Down Rate=29999kbps    Up Rate=9998kbps    SNR Margin Down=14.3dB    Up=8.4dB
18-Mar    03:57:24    DSL Link Up    Down Rate=29999kbps    Up Rate=9998kbps    SNR Margin Down=12.9dB    Up=9.2dB
15-Mar    13:06:45    DSL Link Up    Down Rate=29999kbps    Up Rate=7200kbps    SNR Margin Down=13.3dB    Up=11.4dB
15-Mar    07:03:33    DSL Link Up    Down Rate=29999kbps    Up Rate=7200kbps    SNR Margin Down=13.7dB    Up=12.1dB
02-Mar    23:11:35    DSL Link Up    Down Rate=17238kbps    Up Rate=7200kbps    SNR Margin Down=18.7dB    Up=9.5dB
02-Mar    23:10:41    DSL Link Up    Down Rate=29999kbps    Up Rate=7200kbps    SNR Margin Down=-2.4dB    Up=12.2dB
02-Mar    23:09:47    DSL Link Up    Down Rate=29999kbps    Up Rate=7200kbps    SNR Margin Down=4.6dB    Up=12.2dB
02-Mar    23:08:51    DSL Link Up    Down Rate=29999kbps    Up Rate=7200kbps    SNR Margin Down=-2.0dB    Up=0.0dB
02-Mar    23:04:36    DSL Link Up    Down Rate=29999kbps    Up Rate=7200kbps    SNR Margin Down=12.5dB    Up=11.4dB
02-Mar    23:02:53    DSL Link Up    Down Rate=28732kbps    Up Rate=7200kbps    SNR Margin Down=6.2dB    Up=12.4dB
02-Mar    18:36:32    DSL Link Up    Down Rate=29999kbps    Up Rate=7200kbps    SNR Margin Down=12.6dB    Up=11.3dB
02-Mar    02:38:08    DSL Link Up    Down Rate=29999kbps    Up Rate=7200kbps    SNR Margin Down=12.8dB    Up=11.7dB
01-Mar    09:31:55    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=9.6dB    Up=10.2dB
01-Mar    09:19:52    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=9.9dB    Up=10.2dB
01-Mar    09:14:54    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=8.3dB    Up=10.6dB
01-Mar    08:49:39    DSL Link Up    Down Rate=27398kbps    Up Rate=8496kbps    SNR Margin Down=13.6dB    Up=9.9dB
01-Mar    08:31:37    DSL Link Up    Down Rate=26457kbps    Up Rate=8496kbps    SNR Margin Down=13.9dB    Up=10.3dB
01-Mar    08:29:36    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=7.3dB    Up=10.2dB
01-Mar    08:25:00    DSL Link Up    Down Rate=27053kbps    Up Rate=8496kbps    SNR Margin Down=3.1dB    Up=9.5dB
01-Mar    05:51:07    DSL Link Up    Down Rate=20977kbps    Up Rate=8496kbps    SNR Margin Down=14.9dB    Up=9.4dB
01-Mar    05:38:54    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=9.8dB    Up=10.6dB
01-Mar    05:37:47    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=6.1dB    Up=11.1dB
01-Mar    05:36:36    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=6.9dB    Up=11.1dB
01-Mar    05:31:30    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=9.8dB    Up=10.4dB
01-Mar    05:30:25    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=0.3dB    Up=11.0dB
01-Mar    05:28:53    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=7.3dB    Up=10.4dB
01-Mar    05:21:44    DSL Link Up    Down Rate=24387kbps    Up Rate=8496kbps    SNR Margin Down=5.8dB    Up=10.1dB
01-Mar    05:01:13    DSL Link Up    Down Rate=24134kbps    Up Rate=8496kbps    SNR Margin Down=4.6dB    Up=9.6dB
01-Mar    04:59:48    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=4.3dB    Up=11.2dB
01-Mar    04:58:35    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=6.9dB    Up=11.3dB
01-Mar    04:57:41    DSL Link Up    Down Rate=32399kbps    Up Rate=8496kbps    SNR Margin Down=0.6dB    Up=11.1dB
01-Mar    03:22:56    DSL Link Up    Down Rate=32400kbps    Up Rate=8496kbps    SNR Margin Down=12.9dB    Up=10.4dB
28-Feb    20:16:44    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=9.8dB    Up=8.7dB
28-Feb    20:12:56    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=9.6dB    Up=8.8dB
28-Feb    20:12:03    DSL Link Up    Down Rate=33840kbps    Up Rate=9997kbps    SNR Margin Down=-4.4dB    Up=0.0dB
28-Feb    20:11:09    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=-2.2dB    Up=8.8dB
28-Feb    20:08:21    DSL Link Up    Down Rate=30942kbps    Up Rate=9998kbps    SNR Margin Down=8.9dB    Up=9.3dB
28-Feb    20:07:31    DSL Link Up    Down Rate=35527kbps    Up Rate=9998kbps    SNR Margin Down=-2.0dB    Up=9.1dB
28-Feb    20:05:47    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=9.4dB    Up=8.9dB
28-Feb    20:04:28    DSL Link Up    Down Rate=38311kbps    Up Rate=9998kbps    SNR Margin Down=6.1dB    Up=9.3dB
28-Feb    20:02:58    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=9.4dB    Up=7.9dB
28-Feb    20:01:07    DSL Link Up    Down Rate=35592kbps    Up Rate=9998kbps    SNR Margin Down=-4.5dB    Up=0.0dB
28-Feb    20:00:07    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=-1.0dB    Up=0.0dB
28-Feb    19:58:19    DSL Link Up    Down Rate=35897kbps    Up Rate=9998kbps    SNR Margin Down=5.5dB    Up=9.1dB
28-Feb    19:45:22    DSL Link Up    Down Rate=25506kbps    Up Rate=9998kbps    SNR Margin Down=5.3dB    Up=7.7dB
28-Feb    19:40:59    DSL Link Up    Down Rate=22008kbps    Up Rate=9998kbps    SNR Margin Down=6.0dB    Up=7.9dB
28-Feb    19:40:08    DSL Link Up    Down Rate=38239kbps    Up Rate=9998kbps    SNR Margin Down=-2.1dB    Up=9.0dB
28-Feb    19:39:17    DSL Link Up    Down Rate=37009kbps    Up Rate=9998kbps    SNR Margin Down=1.9dB    Up=8.6dB
28-Feb    19:37:40    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=9.4dB    Up=8.7dB
28-Feb    19:36:04    DSL Link Up    Down Rate=34068kbps    Up Rate=9998kbps    SNR Margin Down=-2.0dB    Up=9.3dB
28-Feb    19:35:12    DSL Link Up    Down Rate=35801kbps    Up Rate=9998kbps    SNR Margin Down=-1.1dB    Up=9.4dB
28-Feb    19:33:46    DSL Link Up    Down Rate=36300kbps    Up Rate=9998kbps    SNR Margin Down=6.1dB    Up=8.6dB
28-Feb    19:32:35    DSL Link Up    Down Rate=35546kbps    Up Rate=9998kbps    SNR Margin Down=6.2dB    Up=9.4dB
28-Feb    19:25:21    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=9.8dB    Up=8.8dB
28-Feb    19:16:37    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=8.0dB    Up=8.8dB
28-Feb    19:15:04    DSL Link Up    Down Rate=38814kbps    Up Rate=9998kbps    SNR Margin Down=7.1dB    Up=8.8dB
28-Feb    19:13:51    DSL Link Up    Down Rate=37980kbps    Up Rate=9998kbps    SNR Margin Down=4.6dB    Up=8.8dB
28-Feb    19:09:58    DSL Link Up    Down Rate=25986kbps    Up Rate=9998kbps    SNR Margin Down=5.5dB    Up=8.8dB
28-Feb    19:06:31    DSL Link Up    Down Rate=30854kbps    Up Rate=9998kbps    SNR Margin Down=12.3dB    Up=8.7dB
28-Feb    19:02:29    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=10.3dB    Up=8.8dB
23-Feb    11:59:17    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=7.4dB    Up=8.7dB
23-Feb    11:25:41    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=7.5dB    Up=9.0dB
19-Feb    02:49:00    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=10.4dB    Up=8.6dB
18-Feb    21:12:55    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=10.4dB    Up=8.9dB
17-Feb    01:02:22    DSL Link Up    Down Rate=39999kbps    Up Rate=9998kbps    SNR Margin Down=10.3dB    Up=8.6dB
16-Feb    11:37:51    DSL Link Up    Down Rate=43998kbps    Up Rate=10000kbps    SNR Margin Down=9.1dB    Up=9.0dB
16-Feb    11:36:27    DSL Link Up    Down Rate=38098kbps    Up Rate=10000kbps    SNR Margin Down=6.3dB    Up=9.6dB
16-Feb    11:35:22    DSL Link Up    Down Rate=40650kbps    Up Rate=10000kbps    SNR Margin Down=6.3dB    Up=9.5dB
16-Feb    11:33:00    DSL Link Up    Down Rate=31498kbps    Up Rate=10000kbps    SNR Margin Down=7.6dB    Up=9.7dB
16-Feb    11:29:52    DSL Link Up    Down Rate=35828kbps    Up Rate=10000kbps    SNR Margin Down=6.1dB    Up=9.7dB
16-Feb    11:24:14    DSL Link Up    Down Rate=31379kbps    Up Rate=10000kbps    SNR Margin Down=8.9dB    Up=9.6dB
16-Feb    11:23:19    DSL Link Up    Down Rate=35325kbps    Up Rate=10000kbps    SNR Margin Down=0.8dB    Up=9.7dB

Re: BT Broadband speeds reducing over time

imjolly — Thu, 24 Mar 2022 14:37:28 GMT

no that's a filter used on the hub logs you are in the advanced/technical logs and looking for advanced /technical information

you certainly have a connection problem with that number of connection drops. Have you tried connecting to the test socket with a filter to see if that stabilises your conenction

Re: BT Broadband speeds reducing over time

Richard909 — Thu, 24 Mar 2022 14:39:04 GMT

Is this it?

Re: BT Broadband speeds reducing over time

imjolly — Thu, 24 Mar 2022 14:47:17 GMT

yes that's the stats.

is it possible to try test socket which is behind master socket faceplate?

if that does not stabilise your connection then you need to phone CS 150 and get engineer visit as your connection will not improve until you get a stable connection

Re: BT Broadband speeds reducing over time

Richard909 — Thu, 24 Mar 2022 14:56:56 GMT

Thanks for you help, I'll try using the test socket for a few days and see what happens.

Re: BT Broadband speeds reducing over time

Richard909 — Tue, 19 Jul 2022 08:53:44 GMT

Finally solved - turned out to be the faceplate / filter.

Using the test socket and plug in filter I had reliable broadband for over a month. (44Mb / 9.9Mb).
Refit the original faceplate / filter - no broadband at all.
Disconnect the extension wiring, no effect.
Back to test socket and plug in filter, all working again.
Bought replacement MK5C master socket from Amazon, plugged in faceplate / filter (with extension wiring disconnected) , again I had reliable broadband for over a month.
Reconnected the extension wiring, still have reliable broadband.

Re: BT Broadband speeds reducing over time

PaddyB — Tue, 19 Jul 2022 09:13:04 GMT

Hi @Richard909,

Thank you for posting back to update the thread.

Thanks,

Paddy

Re: BT Broadband speeds reducing over time

Richard909 — Thu, 19 Jan 2023 10:48:47 GMT

Started have speed and disconnect problems again in December 2022, new filter fitted again and problem solved once more.

Wondering if I'm just unlucky with the filters I'm getting.

Re: BT Broadband speeds reducing over time

pippincp — Thu, 19 Jan 2023 12:11:10 GMT

Those faceplates are notorious for causing issues, it only take a slight touch to cause it to become unseated. IMHO you would be better off with a NTE A back box and MK3 faceplate as this is screwed on.